The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as
Answer: D
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The moment of a force
Answer: D
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When two elastic bodies collide with each other,
Answer: D
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Which of the following statement is incorrect?
Answer: D
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A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is
Answer: A
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The units of moment of inertia of an area are
Answer: B
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The rate of change of displacement of a body is called
Answer: A
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Which of the following is a vector quantity?
Answer: C
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A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
Answer: B
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The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is
Answer: B
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